Create helper functions to use in computeInvariantOutput calls

src/gpu/effects/GrSimpleTextureEffect.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "gl/builders/GrGLProgramBuilder.h"
 #include "GrSimpleTextureEffect.h"
 #include "gl/GrGLProcessor.h"
@@ skipping 25 matching lines @@
     }
 
 private:
     typedef GrGLFragmentProcessor INHERITED;
 };
 
 ///////////////////////////////////////////////////////////////////////////////
 
 void GrSimpleTextureEffect::onComputeInvariantOutput(InvariantOutput* inout) const {
     this->updateInvariantOutputForModulation(inout);
-    inout->fIsSingleComponent = false;
 }
 
 const GrBackendFragmentProcessorFactory& GrSimpleTextureEffect::getFactory() const {
     return GrTBackendFragmentProcessorFactory<GrSimpleTextureEffect>::getInstance();
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 
 GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrSimpleTextureEffect);
 
@@ skipping 17 matching lines @@
 
     static const GrCoordSet kCoordSets[] = {
         kLocal_GrCoordSet,
         kPosition_GrCoordSet
     };
     GrCoordSet coordSet = kCoordSets[random->nextULessThan(SK_ARRAY_COUNT(kCoordSets))];
 
     const SkMatrix& matrix = GrProcessorUnitTest::TestMatrix(random);
     return GrSimpleTextureEffect::Create(textures[texIdx], matrix, coordSet);
 }